Combined primer and humidifier for internal-combustion engines



March 2 1926. 1,575,401

' J. E. WOODWARD .couamsn PRIMER AND mmxnzrmn FOR INTERNAL comsusnou ENGINES bivefifbi' March 2 1926. 7 1,575,401

J. E. WOODWARD COMBINED PRIMER AND HUKIDIFIER FOR INTERNAL COMBUSTION ENGINES Filed June 13, 1921 2 Sheets-Sheet 2 I77 ven?0i* Patented Mar. 2, 1926.

JAMES E. woonwann, or WATERTOWN, MAssAoHUsET-rs AssIenoR To HENRI A.

SEVIGNE, OF WINTHRQP, MASSACHUSETTS.

COMBINED PRIMER Ann H M I FIER 110R iNrERNAnooM-BUs'rIoN ENGINES.

ApplicationfilediTune s, 1921. se i no. 477,261.

To all whom "it. may Concern:

Be it known that I, JAMEs E. VVOODWARD, a'citizen of the United States, and resident of VVatertown, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Combined Primers and Humidifiers for Internal-Combustion Engines, of which the following is a'specification.

This invention relates to internal combus-.

tie-n engines and has particular reference to means for facilitating the economic use of a motor vehicle such as a truck by enabling the user toprime the motor with gaso; line at such times as when starting and to then effect the introduction ofwater vapor. when desired, which introduction of vapor will then continue automatically for any required length of time.

Of the accompanying drawings which illustrate practical embodiments of my invention:

Figure 1 conventionally illustrates sufficient parts of a motor vehicle, including my improved attachments and connections, to enable the invention to be understood.

Figure 2 is a plan view of the vapor valve and trap.

Figure 3 represents a section on line 33 of Figure 2.

Figure 4 is a plan view of the lower or trap member and the valve seat.

Figure 5 represents a longitudinal section of the primer pump.

Figure 6 represents a section on line 6-,6 of Figure 5.

Fi ure 7 re )resents a section on line 7-7.

of Figure 5.

Figure 8 is a view from the right of Figure 5.

Similar reference characters indicate similar parts in all of the views. 7

The radiator 12, dash board 13, engine or motor 14, intake manifold 15, carbureter 16 accelerator rod 1'7 and the pedal 18 and link and lever connections 19,20, therefor, may be of any well known or preferred construetion.

Secured to the dashboard 13 in conveniently accessible position is a gasoline primer pump the outer casing or cylinder of which is indicated at 21 (Figs. 1, 5 and 6). The cylinder 21 has an end cap 22 formed with a flange portion 23 having holes (Fig. 7) through which suit-able screws or bolts pass into the dashboard. A central nipple 24 of the cap 22 has an angular recess :25 the purpose of which will be presently described. 1

The other end ,of the. cylinder 21 has branch nipples 26, 27. The nipple 26 is Coupled to apipe 28and its port 29 is normally closed by an inwardly-seating springactuated ball valve 30. The nipple 27 is coupled to a pipe 31 and its outer port 32 is normally closed by an foutwardly-seating spring-actuated ball valve 33. I

The cylinder 21, at an intermediate point ofits length has-portednipples 34, 35, (Figs.

6 and 8), the nipple 35 being coupled to a pipe 37 (Figs. 1 and 8) and the nipple 34 being coupled to a pipe 36.

Mounted to be reciprocated in the cylin der 21 is a piston head 38 having a suitably packed extension 39, the stem '01- rod 40 of 7 the head 38 passing, through the end cap 22 and having a knob or handle 41 fixed to. its outer end. Said piston rod 40 also has a pin or finger 42 (Fig. 7) normally lying in the recess 25 when the piston and its rod are in the inward position shown in Figures 1 and 5, a spring 43 being located in position to normally hold the piston and rod atthe inner end of the stroke thereof.

The piston is capable of being rotated as well as drawn back by the knob 41, and the portion 38 of the PlStOllyiS formed with a transverse port 44 adapted to register with the ports in the nipples 34, 35, when in the 7 position shown in Figures 5 and 6. partially rotating the piston within the limits prescribed by the pin 42 in recess.- 25, said piston is caused to act as a valve to open or close the passageway through the nipples 34, 35, and the pipes 36, 37, for the 5 purposes described hereinafter.

Referring now to Figures 2, 3 and 4 in connection with Figure 1, the device for controlling the passage of water vapor to the intake manifold of the motor comprises a lower or base member 45 which as illustrated is secured to the dashboard in any suitable manner, said member having a chamber 46 with a drip outlet 47 and a.

threaded inlet 48 for one end of a pipe 49 the other end of which is connected with the radiator 12 at a point of the latter where water vapor accumulates when theradiator is warm. Secured above the chamber 48 is a Plate h ng gmenta p ings 51 and us a pin 52. The plate 50 forms a valve seat for the disk valve 53 having segmental openings 54 and an edge recess 55 to cooperate with the fixed pin 52 in limiting the rotary movement of the disk valve in either direction. i

X The disk valve is securedto the lower end oi a stem 56 rotatably mounted in the cap member 57 which is secured to the base member 45 by suitable screws, the said valve and stem being actedupon by spring 58 to hold the valve closely on the seat 50.

Secured to the upper end of the valve stem is an arm 59 to the outer end of which is connected one end of a link 60 the other end of the link being connected by a coupling G1 with the accelerator rod 17 Preferably, to allow for convenient assemblage and operation, the ends of the link 60 have ball and socket connections with the valve arm 59 and the coupling 61 as indicated at o2 in Figure 2. V

The cap member 57 is provided with a threadedopening 63 (Figs. 2 and 3) to which the lower end of pipe 36 is connected (Fig. 1).

l The gasolene supply pipe 64 leading to.

draw gasolene through the pipe 31 from the supply pipe 64 and. force it through pipe 28 to the intake manifold 15 so as to prime theim tor and start it. Then, as soon as the motor is warm enough the operator leaves the piston in the position to which the spring 43 tends to move it (see Fig. 5) but turns the rod or stem 40 to ensure its pin 42 being in the position shown in Figs ure 7 which will ensure theexistence of a free passageway through the nipples 34, 3-3,;and the piston head.

After this the operation of the accelerator rodi, int-he usual manner, by the pedal will, through the link 60, cause more or less opening of the valve consisting, in this embodiment of the invention, in-the disk valve 53 and its seat 50, the openings in the valve ad seat beng so formed (Fig. 4) that the further the pedal is depressed the greater will be the amount. of registration of said openings. When the valve disk is turned more or less as explainechmore or less water vapor passes .t'rom the radiator through pipe 49 into the trap chamber 46, past the disk valve, through pipe 36, and then through the now open port 44 of the piston head, and the pipe 37 to the manifold 15. 'Ifthere should be any overflow of water from the radiator into pipe 49, it will be trapped in the chamber 46 and escape throughdrip outlet 47. v It will now be understood that the pump 'ing device substantially as illustrated constitut-es, when properly connected by pips, effect priming of the motor and to open or close the connections for introducing water vapor to the manifold 15. This is due to the transverse port 44 in the piston member 38 and the nipples34, 35, whereby the oper ator may either reciprocate the piston mom-- her to effect the pumping action described, or turn it without reciprocating it so as to open or close the passageway through the pipes 36, 37. Therefore I do not limit myself to the specific structureof valve shown in Figures 2, 8, and 4 as any mechanically equivalent valve device operated in synchronism with the usual butterfly valve which is controlled by the accelerator rod may be substituted for the valve shown without departing from myinvention.

' I do not claim herein the vapor control valve illustrated in-Figures 2, 3 and 4, 1:8 the same forms the subject matter-of claims in my application filed September 13, 1922, Serial No. 588,002.

Having now described my invention, I claim: i

The combination with an internalcombustion engine of a pump havinga piston member provided with a transverse port, and connections to enable said pump to either effect priming of the engine or for said piston member to open or close a pasageway for the introduction of vapor to said engine.

In testimony whereof I have allixed my signature.

JAMES woonwiinn.

a single member for operation to both 

